Oil Degassing Apparatus Using Float Valve and Ejector Pump
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Solution Overview
Problem
Existing degassing apparatuses for oil systems require vacuum pumps to generate under-pressure for gas separation, leading to increased complexity, cost, and larger oil reservoir volumes, while also degrading oil quality due to simultaneous air and water release.
Innovation Solution
A degassing apparatus that utilizes a float and valve mechanism to create under-pressure through oil level variations, eliminating the need for vacuum pumps and allowing for efficient gas separation without electronic control, thus reducing gas and water concentration in oil systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vacuum pump is used to generate under-pressure for gas separation, then gas separation efficiency is improved, but device complexity and cost increase
Solution Approach 1:
The system uses the oil circulation itself to generate the pressure variations needed for degassing. The ejector pump creates under-pressure during oil suction, and the throttling element creates pressure increase during oil discharge, eliminating the need for external vacuum pumps while maintaining effective gas separation
Solution Approach 2:
The ejector pump serves dual functions: it both circulates oil through the system and generates the under-pressure conditions necessary for gas separation. The throttling element similarly serves both as a flow control device and a pressure generation mechanism
2Productivity
If a vacuum pump is used to generate under-pressure for gas separation, then gas separation efficiency is improved, but cost increases
Solution Approach 1:
The system uses the oil circulation itself to generate the pressure variations needed for degassing. The ejector pump creates under-pressure during oil suction, and the throttling element creates pressure increase during oil discharge, eliminating the need for external vacuum pumps while maintaining effective gas separation
Solution Approach 2:
The invention replaces expensive vacuum pump equipment with simpler, more economical components - specifically an ejector pump combined with a throttling element - achieving the same degassing function at lower cost
3Productivity
If oil is given long retention time in reservoir for gas bubbles to rise, then gas removal is improved, but oil reservoir volume increases
Solution Approach 1:
The system applies periodic pressure variations to the oil through the ejector pump and throttling element, creating alternating under-pressure and pressure increase cycles that actively promote gas bubble separation and rise, replacing the need for long static retention times
Solution Approach 2:
The system exploits pressure-induced phase changes in dissolved gases. During under-pressure phases, gases separate from oil; during pressure increase phases, the system maintains conditions for continued separation, creating an active degassing cycle
4Productivity
If under-pressure is applied to saturated oil, then gas and water release is improved, but oil degradation increases
Solution Approach 1:
The system applies periodic pressure variations to the oil through the ejector pump and throttling element, creating alternating under-pressure and pressure increase cycles that actively promote gas bubble separation and rise, replacing the need for long static retention times
Solution Approach 2:
The degassing process operates continuously as oil circulates through the system, with the ejector pump and throttling element maintaining constant pressure variations that continuously promote gas and water separation, preventing the accumulation of harmful substances
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables efficient degassing and dewatering with smaller oil reservoir volumes, enhancing operational reliability and extending component and oil system life, while being insensitive to oil density and orientation variations.
Implementation Method 1
an ejector pump (5) connected to the outlet (32) for sucking out oil from the room (30) via the outlet (32)
Implementation Method 2
a regulating device comprising a float (51) and a valve member (52) actuated by the float (51) for regulating the feeding of oil into the room (30) via the inlet (31)
Implementation Method 3
gas bubbles are formed in the oil, which gas bubbles will rise to the oil surface and accumulate in the space above the oil surface in the room (2)
Implementation Method 4
a non-return valve (33) connected to the upper part of the room (30) and arranged to allow gases and water vapour to flow out of the room (30)
Data Source
Figure 1~2a
Figure 2b~2e
Figure 3~4
AI summary
An apparatus for degassing oil comprising :- a room (30) for receiving oil comprising a first chamber (30a) and a second chamber (30b) connected to the first chamber; - an inlet (31 ) feeding oil into the first chamber; - an outlet (32) for feeding oil out of the first chamber; - a suction arrangement (40) connected to the outlet (32) for sucking out oil from the room; - a non-return valve (33) connected to the second chamber; and - a regulating device comprising a float (51 ) and a valve member (52) activated by the float for regulating the feeding of oil into the room. The float has a lower section (51 ) located in the first chamber and an upper section (51 b) extending into the second chamber. The upper section delimits a flow passage (63) extending between the first chamber and the second chamber. The valve member is arranged to open the inlet when the float assumes a lower position in the room and close the inlet when the float assumes an upper position in the room.